Respuesta :

calculista
we have that 
cos(alfa)=0.2546
arc cos (0.2546)=75.2501---------- > 75.25°
the answer is 75.25°
Orbis

Answer:

The answer above for question 7 is also correct its B. 30 degrees. Because that anser is hard to find on here.

Step-by-step explanation: